///////////////////////////////////////////////////////////////////////////////////////////////
//
//    This File is Part of the CallButler Open Source PBX (http://www.codeplex.com/callbutler
//
//    Copyright (c) 2005-2008, Jim Heising
//    All rights reserved.
//
//    Redistribution and use in source and binary forms, with or without modification,
//    are permitted provided that the following conditions are met:
//
//    * Redistributions of source code must retain the above copyright notice,
//      this list of conditions and the following disclaimer.
//
//    * Redistributions in binary form must reproduce the above copyright notice,
//      this list of conditions and the following disclaimer in the documentation and/or
//      other materials provided with the distribution.
//
//    * Neither the name of Jim Heising nor the names of its contributors may be
//      used to endorse or promote products derived from this software without specific prior
//      written permission.
//
//    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
//    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
//    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
//    IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
//    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
//    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
//    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
//    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
//    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//    POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////////////////////////


using System;
using System.DirectoryServices;
using System.Runtime.InteropServices;

namespace NET.Remoting.Channels
{
  public class Authenticate
  {
    private string _username;
	  private string _password;
	  private string _domain;	  
	  
    public Authenticate(string username, string password, string domain)
    {
      Username = username;
      Password = password;
      Domain = domain; 
    }

    public string Domain
    {
      get
      {
        return _domain;
      }
      set
      {
        _domain = value;//"LDAP://" + value;
      }
    }

    public string Username
    {
      get
      {
        return _username;
      }
      set
      {
        _username = value;
      }
    }

    public string Password
    {
      get
      {
        return _password;
      }
      set
      {
        _password = value;
      }
    }

    [DllImport("advapi32.dll", SetLastError=true)]		
    private static extern bool LogonUser(String lpszUsername, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken);

    public bool IsValidUser()
    { 
      const int LOGON32_PROVIDER_DEFAULT = 0;			
      const int LOGON32_LOGON_INTERACTIVE = 2;		
      IntPtr tokenHandle = IntPtr.Zero;

      if(LogonUser(Username, Domain, Password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, ref tokenHandle))
      {
        return true;
      }
      else
      {
        return false;
      }
    }
  }
}